molecule
The Spanish word 'molécula' refers to 'molecule' in English. A molecule is the smallest particle in a chemical element or compound that has the chemical properties of that element or compound. Molecules are made up of atoms that are stuck together in a specific shape or structure. In essence, 'molécula' is a fundamental concept in the field of chemistry and physics.
Water is an essential molecule for life.
This phrase is explaining the importance of water molecules to life, indicating that they are fundamental for its existence.
The oxygen molecule is necessary for breathing.
This sentence states that for the process of breathing to occur, the molecule of oxygen is required. This is due to the fact that during respiration, our lungs filter out oxygen from the air and transport it to our body's cells.
Genetics focuses on the study of DNA molecules.
This phrase indicates that the field of genetics specifically concentrates on understanding DNA molecules, which carry the genetic instructions used in growth, development, function and reproduction of all living organisms and many viruses.